Did you know that there are multiple types of odds for betting on the 2016 Rio Olympic Games? Depending on the event you are wagering on, the site you are using, or where you are from, you will see different variations of the odds. However, they all equal the same result. The three main types of betting odds are American, British, And European (or moneyline, fractional, and decimal). With American odds, the favorite is represented with a minus (-), and the underdog with a plus (+). Having a wager on the 2016 Rio Olympics is not only a matter of what, but where to bet on the Olympics. The Olympics is a global event, so too, the betting. USA customers will naturally have different options open to them on where to bet on the Olympics, as opposed to European based players.